Force-pump oil can



' Aug. 28, 1923. 1,466,256

E. B. STELTER FORCE PUMP OIL CAN Filed March 11 1922 Patented Aug. 28, 1923. t

" mazes EDWARDB. STELTER, or HINGHAJJL'MONTANA;

ronon ronr OIL oAn. U

' Application filed March 11', 192 a", Serial no. 542,922.

7 To all whom it may 0mm.-

, Be it known vthat I EDWARD 'B. VSTE'LTER! a citizen of the United States, residing at Hingham, in the county of Hill and State of Montana, have invented certain new and useful Improvements in F orce-Fump 'Qll Cans, of'which the following is a specifi cation, reference being had to the accompanying drawings.

This invention relates to dispensingcans for containing lubricating oil, and particuh larly to cans of that type wherein means are 2 provided for positively forcing the oil out of the can. i

The general object of this invention is to provide an oil can of this type having a plunger and meanswhereby the plunger may be given a step by step movement to force the I vice of this character whioh is not compli cated with check valves for preventin'g'the reverse fiow of the oil which valves are very liable to get out of order, and further to so construct the can that it makes no difference in what position the can is held; in

discharging the oil. 3 Another object is to' provide a can of this character which may be taken apart readily for cleaning or adjustment whenever desired.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein a i Figure 1 is a vertical sectional view through my improved dispensing can, the section being taken on the line 11 of Figure 2;

Figure 2 is a top plan View of the con struction shown in Figure 1;

Figure 3 is a sectional view of the tubular piston rod 19 above the holder 29 [Figure 4 is a like view above the holder 34; 7 7

Figure 5 is an enlarged sectional view of the spout 19 and the holding devices therefor. 1

Referring to these drawings, 10 designates the body of the oil can, which is provided preferably with the upwardly bowed top 11 which 1S preferably, though not necessarily, pressed or cast integral with the held in place,

outer "end of this lever.

" body 10. The lower endofthe oil can is "outwardlyflared, as at 12, and; e'Xteriorl'y screw-threaded for engagement withfthe flangesot a b'ottomf-13. The top 11 is formed with filling opening normally closed by a cap? 14 andwith anion'tlet open ing defined-by an exteriorly screw-threaded 'flange 15: adapted to'engage a union ld This spout has any, desired whereby the' fiangedend of the spout 17 is or usual? form;

"The top 11 has a gland or :"packing nut?" I "18,1through which passes a piston rod'19. vThis p1ston"rod istubular and is open atits loweriendand atits upperend' is formed 1 i with a gooseneck .21 which isi'so disposed Q 'thatwhen the piston rod' is lowered, the opening at the l'ower'end ofthe gooseneck is immediately over the filling o eninggef the can; @arried'upon the lower end' of the piston rod and held in place by the nuts 22 is a piston 23tor1ned of upper and lower disks with an interiorgc'ore of heavy cloth which is'riveted to the disks and .ex-

tends out beyond'these disks'to engage with he Wall of the body 10 to prevent passage of oil around th i t i For the purposeiof givinga step by step movement to thepiston, 1 mount upon the bifurcated bracket '25 attached to the top :11

the lever 26; constituting a finger piece and having-its relatively flat 'andwide outer end disposed above the handle 27 of theican so that the thumb may be used to depressthe The inner end of thislever isconnectedbya pair-of pivotedlinks to a lifting and locking dog 29fha'ving a ste eo whose axis extends diagonallythrough thelever and whose width ;is equal to the diameter ofthe rod 19, the length of this slot being-somewhat greater than the rod 19 so that the'locking dog mayiosoillate l/Vhen this locking dog 29 is in'a'horizo'ntal" position or atright anglesto the rod '19, the end walls of the slot 30 are nearly parallel with the rod 19v and the dog does not bind upon'the rod 19, but when this dog is raised or cantedby'anvupward movement of the link 28 due to adepresslon of the lever 26', the locking dog will 'tend'to-shift intola more or lessv acute angle to the rod '19 and bite against this rod and then as. the dog 29 is raised, the piston rod or plunger will-be raised, lVhen this locking dog" is ina liorie zontal positionthere will be no binding ac tion andthe piston rodwill pass freely 1 es farhsit willgo.

through thep'penin'g 30. That end of the dog 29'opposite the'links 18 iscohnected to a coiled contractile spring 31 attached at its lower end to the top 11 in any suitable man-1 5 ner, as to a bracket 32. This bracket 32 carries a pair of rings 33 Which extend u'p iverd and to the upper QIld QfflYlllCh is pivoted a,

7 locking dog 3e Whichelso has a slot 35; this 7 slot hevinge Width slightly greater than the 10 'dienietei of the piston rod l enda length greater-[thin the diet nete'r er. tlie r d,

1 having its e X is disposed at {in inclihittidn to gthe fa of deg 34: atanfang'lielQP- p'osite to the tingle of the slot 30. lfhns I lfi fvvh en this lockin dog 3% tpiprolxi' ni 'tes' a 'ho'fizoiitai pbsitioiji it will bindfnpon "the f rod'o'r plunger 19 'tnd lock the rod19 rt' iiiist t l ingh When it s slightly raised, hewe'ver,

;- byhn u'p'tvard'nioveinent Orthepiun er or go d, theedges of the slot 35 \villreleasetheir grip np enfthe rod hand the rod may; pass n pyvard 'treely therethrough The free; end of this locking, dog 34: is drawn downward I coiled contractile spring 36 which is connected to thelever 26 th'isspr ing acting to I depress the locking deg 34: in' its lee e P si t v It Wil be 'nn d erstood that iii the operation thisidevice the oil disposed. ebove the piston 2 3and that the oil is ejected from 1 the spout 17 by causing the "piston "to inove toward. the spout. Spine leakege'of oil will flecicnnihovvever, between the piston,23 and the wallfof the body; 10 and by 'aroviding' the 35 elbow or goosenecl; 21 it is possible by torci ne e P ston wn o; e' selth 07 fwh has lefztlge'd pastthe piston topess t pthigough' the vent formed by the pipe 19 and out throngh this elbow 21 2tnd back into the oil penthrough the opening'norniellyclosed by thecap'leh rdina rily, however, there will be no oil below the piston.

, To operate the device, the er free end of the holding dog or device 34 is lifted npiiin til it is inclinedtothe horizontal and the plungerjsfforced vall the Way down i The cap 1 1 is then unscrewed and oilis .fille'dinto the can and the Veep replaced. If it then be desired to disto charge the oil the body is held by the handle QY'endthe thunib placed on the lever 26. Then by pressing dotvn on the lever Q tS/it lifts the 'dogor locking device 29 about oneeighth ofjan inch. This lifts the plunger hp about one eighth of 'an'jinch cztusing a dis charge of acertainarnonnt of oil. Lifting theplnnger raises the locking doglMffroin its position shown in Figure 5 andpe'rii'iits the upward movement of thepltinger. The

O innction of the dog-34 is to keep the plunger rod from,. moving downwa rd when the ,dog 29 is inovih g downward andgetting anew hold Vyhen the pressuie on thelever 26 is releasechthe dog 34 immediately engages the rod 19 to prevent its further descent While pact and plunger 'eperatin throi cent the dob; to cense it to bind ii Again pressthe dog 29 moves downward. I

'ftthe plunger ing upon the lever 26 Will 19 another stroke of one eighth of an inch,. and so by consecutive depressions of the le-' ver 26 e step by step movementof the plunger rod 19 ill be given, carryingthe piston towar the oil little bv 1 ttl'e.

It Will becbvions that the can can be readily taken aye-art by i lnscr'ewi'ng thebottoin 15' and i 21 from the ii the spent 17 and discharging pper end'o'r" the plunger Then the plunger can be p'nshed out of the body and the plunger find plring'er rod eerie; removed; 1 t the b'oc r The lower 1 insertion of the plunger. it Will befs ee'n 'rnoving the elboW'oi goose'neck" that however thecztn be inverted 111003 fivi'll how 'ir'o n the' cit'n and tlielt be i rced out pit'he can by posltivee'ctuetipn through the action'fof the thumb lever 26.

v i t, w'fl- Wlnle I have illustrated a, construction which is perticulerly 'efifect'ive' 611 the purpose "intended, which is very siinple 'c imes'not re dily get out of es j' t' ,is

I do not ish to hiiiited to this;

1 is of constrii t on fa" ts W theut departing invention as defined mtliedpspirit "0'1 th pended claims 1 cla m 1. Athspensing 011 can having it discharge 50111, e plunger disposed within the chine plnn'cr rod attached th the plu'n r a nd j;- tend gthrotigh tl zitjendbf therein h the disehaifg'e spout, finger -act'iieted,- for giving -a step v by step i v a v in otie'nftOt-he plungerl tovverd the spout, and frnettnsffor holding the plunger-from reverse ihevenient;

' said means being rendered inope v: tive by movementof the plunger toward the 5 out.

2. A 'dispe'nsi plunger rodyasecond leckiiig' dog yieldin ly held n at PQSH'JOD to bind nponvthe fph' rod and prevent backwarn nioveineiit e plunger rod the secondnemed dogperiiiitthe plunger tingthe upward niove'nient of rod. V

. 8. In an O'Il can, body having at spout at one end, a cap closing the opposite "end'of the body, plunger di'sposedrvithinth body and rnot oward or "from the s "3 many changes'in'ightibe iniide v dsrrangefrom the it a tiibiilai plun er" ro'd 'extendiiig ont tli oulsih that end df'the body upon which thetpout.

is disposed, this end of the body having a filling opening and the rod having an elbow disposed with its discharge end in alignment with the filling opening whereby oil which may have leaked into the space between the plunger and the cap may be forced out through the tubular plunger rod and back into the can above the plunger.

4. An oil can of the character comprising a body open at one end, a cap detaehably engaged with the open end of the body, a plunger disposed in the body, a plunger rod extendingthrough the end of the body opposite the cap, manually operable means at this endoit' the body whereby a step by step motion may be given to the described o plunger rod in a direction to carry the plunger away from said cap, and means normally preventing the retractive movement of said plunger andv plunger rod, both of said meansbeing shiftable to a'posi'tion to permit the plunger rod to be withdrawn from engagement therewith and the plunger of said cap-,said means permitting the plunger rod to be withdrawn and the plunger withdrawn from the can upon the removal of said cap.

In testimony whereof I hereunto aifiir my signature.

, EDWARD B. STELTER. I 

